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Table 7-2.Water Infrastructure Needed to Meet Ultimate Demands and Estimated Costs. <br /> Item Quantity Units Unit Cost Er Total Cost <br /> Rogers <br /> 5 MGD Lime Softening WTP 1 Lum Sum $25 000 000 $25 000 000 <br /> Expansion p ' <br /> 0 <br /> Wells 7 Each $1,500,000 $105 500,000 <br /> Raw Watermain 5,300 Feet $300 $1,590,000 <br /> Ramsey <br /> 8 MGD Lime Softening WTP 1 LumpSum $32 000 000 $32 000 000 <br /> Expansion ' <br /> Wells 8 Each $17 500,000 $12,000,000 <br /> Raw Watermain 10,600 Feet $300 $3,180,000 <br /> Dayton <br /> 8 MGD Lime Softening WTP <br /> Ex ansion north zone 1 Lump Sum $32,000,000 $3250007000 <br /> p ( ) A■ <br /> 10 MGD Lime Softening 1 LumpSum $36 000 000 $36 000 000 <br /> WTP (south zone) ' <br /> Wells A 15 Each $1,500,000 $22 5 500 7 000 <br /> Raw Watermain 'M 20,000 Feet $300 $670003000 <br /> Corcoran 1�s <br /> 18 MGD Lime Softening 1 LumpSum $53 000 000 $53 000 000 <br /> WTP Expansion ' <br /> Wells mr 16 Each $115001000 $24,0001000 <br /> Raw Watermain 22,000 Feet $300 $6,600,000 <br /> Easements/ Land 35 Acres $100 000 $3 500 000 <br /> Acquisitions ' <br /> Environmental 11 Miles $50,000 $550,000 <br /> L Subtotal $268,4009000 <br /> - Contingency (30%) $805001000 <br /> -_ Eng/Admin/Legal (20%) $695800,000 <br /> Total $419,000,000 <br /> 7.4 Estimated Operation and Maintenance Costs <br /> O&M costs for the lime softening groundwater WTPs were estimated based on pumping costs, <br /> chemicals, labor, residuals handling and disposal, and maintenance expenses. <br /> Table 7-3.Total Annual O&M Costs for Lime Softening Groundwater WTPs for Each Community(Status Quo). <br /> Alternative Treatment Plant <br /> O&M <br /> Approach 4—2040 Demands $6 100 000 <br /> (7.8 MGD Water Provided) ' <br /> Approach 4— Ultimate Demands $18 100 000 <br /> (29 MGD Water Provided) ' <br /> Page—33 1 METROPOLITAN COUNCIL <br />